12 May 1986 Image Processing For Automatic Alignment In The Nova Laser Facility
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Proceedings Volume 0608, Optical Alignment III; (1986) https://doi.org/10.1117/12.976189
Event: O-E/LASE'86 Symposium, 1986, Los Angeles, CA, United States
Abstract
The Nova laser is a high-power, pulsed, neodymium-glass system used for inertial confinement fusion and X-ray laser research at the Lawrence Livermore National Laboratory. The control system aligns the ten 250-m-long beams by closing approximately 300 automatic loops. TV alignment sensor images are image processed to extract laser beam and reference information. Two-dimensional techniques that have been applied to process these images include correlation, convolution, gradient, centroid, Hough transform, and histogram equalization. These techniques combine to form algorithms that are relatively insensitive to image Intensity. This paper describes practical image processing methods and reliability measures developed for automatic alignment.
© (1986) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Paul J. Van Arsdall, Paul J. Van Arsdall, Raymond J. Peeves, Raymond J. Peeves, "Image Processing For Automatic Alignment In The Nova Laser Facility", Proc. SPIE 0608, Optical Alignment III, (12 May 1986); doi: 10.1117/12.976189; https://doi.org/10.1117/12.976189
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